Method 1 : using the max, sensitive to outliers NO

Method 2 : mu + 3sigma (mu + sigma), mu is also sensitive to outliers NO

Method 3 : 2k, very strange NO

Method 4 : skewness, appropriate YES

Method 5 : mu + 3sigma_left (mu + sigma_left)

Method 6 : anti hubs, appropriate YES

Method 7 : 3MAD (MAD), maybe ? but median values are sometimes equal to zero…

Method 8 : mode + 3sigma (mode + sigma)